Birdwatch Note Rating
2023-11-04 21:09:13 UTC - HELPFUL
Rated by Participant: C12A3A7A161FF0EA63F646D2E2BE53DF16818862EAC2CE16F6D21B139D4C4433
Participant Details
Original Note:
Because the transponders in three of the four hijacked aircraft were switched off, and the remaining aircraft had changed its transponder code twice, the FAA had difficulty relaying the current aircraft positions https://www.vanityfair.com/news/2006/08/norad200608 https://web.archive.org/web/20091010053852/http://pccw.alumni.cornell.edu/news/newsletters/spring06/riggs.html
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